Mulkan Syahputra, supriadi, and Purba Marpaung. “The Mapping of Irrigated Paddy Fields Which Were Polluted by Detergent Waste in Kolam Village, Percut Sei Tuan Sub-District, Deli Serdang District”. Jurnal Online Pertanian Tropik 8, no. 2 (January 10, 2022): 144–149. Accessed August 4, 2025. https://idjpcr.usu.ac.id/jpt/article/view/8078.